C++ (Cpp) NtGdiGetRandomRgn Exemples

Exemple #1

Fichier : region.c Projet : GYGit/reactos

/*
 * @implemented
 */
int
WINAPI
GetClipRgn(
    HDC     hdc,
    HRGN    hrgn
)
{
    INT Ret;

    /* Check if DC handle is valid */
    if (!GdiGetDcAttr(hdc))
    {
        /* Last error code differs from what NtGdiGetRandomRgn returns */
        SetLastError(ERROR_INVALID_PARAMETER);
        return -1;
    }

    Ret = NtGdiGetRandomRgn(hdc, hrgn, CLIPRGN);

//  if (Ret)
//  {
//     if(GetLayout(hdc) & LAYOUT_RTL) MirrorRgnDC(hdc,(HRGN)Ret, NULL);
//  }
    return Ret;
}

Exemple #2

Fichier : region.c Projet : GYGit/reactos

/*
 * @implemented
 */
int
WINAPI
GetMetaRgn(HDC hdc,
           HRGN hrgn)
{
    return NtGdiGetRandomRgn(hdc, hrgn, METARGN);
}

Exemple #3

Fichier : NtGdiGetRandomRgn.c Projet : hoangduit/reactos

INT
Test_NtGdiGetRandomRgn(PTESTINFO pti)
{
    HWND hWnd;
    HDC hDC;
    HRGN hrgn, hrgn2;

    /* Create a window */
    hWnd = CreateWindowW(L"BUTTON", L"TestWindow", WS_OVERLAPPEDWINDOW | WS_VISIBLE,
                         CW_USEDEFAULT, CW_USEDEFAULT, 100, 100,
                         NULL, NULL, g_hInstance, 0);
//	UpdateWindow(hWnd);
    hDC = GetDC(hWnd);

    ASSERT(hDC != NULL);

    hrgn = CreateRectRgn(0,0,0,0);
    hrgn2 = CreateRectRgn(3,3,10,10);
    SetLastError(ERROR_SUCCESS);
    RTEST(NtGdiGetRandomRgn(0, hrgn, 0) == -1);
    RTEST(GetLastError() == ERROR_INVALID_HANDLE);

    SetLastError(ERROR_SUCCESS);
    RTEST(NtGdiGetRandomRgn((HDC)2345, hrgn, 1) == -1);
    RTEST(GetLastError() == ERROR_INVALID_HANDLE);

    SetLastError(ERROR_SUCCESS);
    RTEST(NtGdiGetRandomRgn((HDC)2345, hrgn, 10) == -1);
    RTEST(GetLastError() == ERROR_INVALID_HANDLE);

    SetLastError(ERROR_SUCCESS);
    RTEST(NtGdiGetRandomRgn((HDC)2345, (HRGN)10, 10) == -1);
    RTEST(GetLastError() == ERROR_INVALID_HANDLE);

    SetLastError(ERROR_SUCCESS);
    RTEST(NtGdiGetRandomRgn((HDC)2345, 0, 1) == -1);
    RTEST(GetLastError() == ERROR_INVALID_HANDLE);

    SetLastError(ERROR_SUCCESS);
    RTEST(NtGdiGetRandomRgn(hDC, 0, 0) == 0);
    RTEST(NtGdiGetRandomRgn(hDC, 0, 1) == 0);
    RTEST(NtGdiGetRandomRgn(hDC, (HRGN)-5, 0) == 0);
    RTEST(NtGdiGetRandomRgn(hDC, (HRGN)-5, 1) == 0);
    RTEST(NtGdiGetRandomRgn(hDC, hrgn, 0) == 0);
    RTEST(NtGdiGetRandomRgn(hDC, hrgn, 1) == 0);
    TEST(NtGdiGetRandomRgn(hDC, hrgn, 2) == 0);
    RTEST(NtGdiGetRandomRgn(hDC, hrgn, 3) == 0);
    RTEST(NtGdiGetRandomRgn(hDC, hrgn, 4) == 1);
    RTEST(NtGdiGetRandomRgn(hDC, hrgn, 5) == 0);
    RTEST(NtGdiGetRandomRgn(hDC, hrgn, 10) == 0);
    RTEST(NtGdiGetRandomRgn(hDC, hrgn, -10) == 0);
    RTEST(GetLastError() == ERROR_SUCCESS);

    SelectClipRgn(hDC, hrgn2);
    RTEST(NtGdiGetRandomRgn(hDC, 0, 1) == -1);
    RTEST(GetLastError() == ERROR_SUCCESS);
    RTEST(NtGdiGetRandomRgn(hDC, hrgn, 1) == 1);
    RTEST(CombineRgn(hrgn, hrgn, hrgn, RGN_OR) == SIMPLEREGION);
    RTEST(CombineRgn(hrgn, hrgn, hrgn2, RGN_XOR) == NULLREGION);

    SetRectRgn(hrgn2,0,0,0,0);
    SelectClipRgn(hDC, hrgn2);
    RTEST(NtGdiGetRandomRgn(hDC, hrgn, 1) == 1);

    RTEST(CombineRgn(hrgn2, hrgn, hrgn2, RGN_XOR) == NULLREGION);
    RTEST(CombineRgn(hrgn2, hrgn, hrgn, RGN_OR) == NULLREGION);

    SelectClipRgn(hDC, NULL);
    RTEST(NtGdiGetRandomRgn(hDC, hrgn, 1) == 0);


    RTEST(NtGdiGetRandomRgn(hDC, hrgn, 4) == 1);

    RTEST(GetLastError() == ERROR_SUCCESS);

    ReleaseDC(hWnd, hDC);
    DestroyWindow(hWnd);

    return APISTATUS_NORMAL;
}